879828 has 24 divisors (see below), whose sum is σ = 2070432. Its totient is φ = 290784.

The previous prime is 879821. The next prime is 879839. The reversal of 879828 is 828978.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 879828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879821) by changing a digit.

879828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1651 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (86268).

2⁸⁷⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

879828 is an abundant number, since it is smaller than the sum of its proper divisors (1190604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879828 is a wasteful number, since it uses less digits than its factorization.

879828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 629 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 879828 is about 937.9914711766. The cubic root of 879828 is about 95.8221533692.

It can be divided in two parts, 87982 and 8, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 879828 in words is "eight hundred seventy-nine thousand, eight hundred twenty-eight".